Z20
Non-billableContact with and (suspected) exposure to communicable diseases
Z20 is the ICD-10-CM code for Contact with and (suspected) exposure to communicable diseases. It is a non-billable category code — use a more specific child code such as Z20.0 for billing.
- Status
- Header (non-billable)
- Chapter
- Z00-Z99
- Subcodes
- 10
- Edition
- FY2026
Z00-Z99 Factors influencing health status and contact with health services
Excludes1 — not coded here
- •carrier of infectious disease (Z22.-)
- •diagnosed current infectious or parasitic disease -see Alphabetic Index
Excludes2 — not included here
- •personal history of infectious and parasitic diseases (Z86.1-)
Frequently asked questions
- What is ICD-10 code Z20?
- Z20 is the ICD-10-CM code for "Contact with and (suspected) exposure to communicable diseases". It falls under Z00-Z99 Factors influencing health status and contact with health services.
- Is Z20 a billable code?
- No — Z20 is a non-billable header code. Use a more specific child code (such as Z20.0) for billing.
- What is excluded from Z20?
- Excludes1 (not coded here): carrier of infectious disease (Z22.-); diagnosed current infectious or parasitic disease -see Alphabetic Index.
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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